Home / 18,281.58-25,215.75-11,210.82

Finding the Fourth Proportional to 18,281.58, 25,215.75 and 11,210.82

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Solution

The fourth proportional to 18,281.58, 25,215.75 and 11,210.82 is: 15,463.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.58 : 25,215.75 = 11,210.82 : x
  2. Step 2: Convert to fraction form
    18,281.58/25,215.75 = 11,210.82/x
  3. Step 3: Cross multiply
    18,281.58x = 25,215.75 × 11,210.82
  4. Step 4: Simplify right side
    18,281.58x = 282,689,234.42
  5. Step 5: Solve for x
    x = 282,689,234.42/18,281.58
  6. Step 6: Final answer
    x = 15,463.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.